Effects of conidial concentration and stigma wetness period on infection by the sorghum ergot pathogen Claviceps africana

Bhuiyan, S. A. and Ryley, M. J. and Galea, V. J. and Tay, D. and Lisle, A. T. (2009) Effects of conidial concentration and stigma wetness period on infection by the sorghum ergot pathogen Claviceps africana. Australasian Plant Pathology, 38 (5). pp. 496-499. ISSN 0815-3191

Abstract

The effect of conidial concentration and length of stigma wetness period on infection of sorghum spikelets by
Claviceps africana was studied in a controlled environment experiment. A spore concentration of at least 106 conidia/mL was required for maximum infection on sorghum panicles. Maximum infection occurred during a stigma wetness period between 4.5 and 6 h. Approximately 11–15% infection occurred when stigmas had been dried immediately after inoculation.
This study demonstrated that the stigma wetness is an important parameter in sorghum ergot epidemiology.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: © Australasian Plant Pathology Society 2009. Published version deposited in accordance with the copyright policy of the publisher.
Faculty / Department / School: Historic - Faculty of Sciences - Department of Biological and Physical Sciences
Date Deposited: 05 Jun 2014 02:23
Last Modified: 02 Jul 2014 05:52
Uncontrolled Keywords: bacteria; microorganisms; Claviceps africana
Fields of Research : 06 Biological Sciences > 0699 Other Biological Sciences > 069999 Biological Sciences not elsewhere classified
06 Biological Sciences > 0605 Microbiology > 060501 Bacteriology
07 Agricultural and Veterinary Sciences > 0703 Crop and Pasture Production > 070308 Crop and Pasture Protection (Pests, Diseases and Weeds)
Socio-Economic Objective: E Expanding Knowledge > 97 Expanding Knowledge > 970107 Expanding Knowledge in the Agricultural and Veterinary Sciences
Identification Number or DOI: 10.1071/AP09032
URI: http://eprints.usq.edu.au/id/eprint/25168

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